Читать книгу Marvels of Scientific Invention - Thomas W. Corbin - Страница 3
DIAGRAMS
Оглавлениеfig. | page | |
1. | Principle of Galvanometer | 30 |
2. | String Galvanometer | 31 |
3. | Duddell Thermo-Galvanometer | 39 |
4. | Construction of a Voltmeter | 64 |
5. | The Working of a Refrigerating Machine | 70 |
6. | Hertz's Machine | 155 |
7. | Hertz "Detector" | 156 |
8. 9. 10. | Wireless Waves | 158 |
11. | A Wireless Antenna | 164 |
12. | Poulsen's Machine | 166 |
13. 14. | How Pictures are sent by Wire | 177 |
15. | Message received by Telewriter | 189 |